diff options
Diffstat (limited to 'sound/pci/oxygen/oxygen_lib.c')
| -rw-r--r-- | sound/pci/oxygen/oxygen_lib.c | 834 |
1 files changed, 834 insertions, 0 deletions
diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c new file mode 100644 index 00000000..92e2d67f --- /dev/null +++ b/sound/pci/oxygen/oxygen_lib.c @@ -0,0 +1,834 @@ +/* + * C-Media CMI8788 driver - main driver module + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * + * + * This driver is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2. + * + * This driver is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this driver; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/mutex.h> +#include <linux/pci.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <sound/ac97_codec.h> +#include <sound/asoundef.h> +#include <sound/core.h> +#include <sound/info.h> +#include <sound/mpu401.h> +#include <sound/pcm.h> +#include "oxygen.h" +#include "cm9780.h" + +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_DESCRIPTION("C-Media CMI8788 helper library"); +MODULE_LICENSE("GPL v2"); + +#define DRIVER "oxygen" + +static inline int oxygen_uart_input_ready(struct oxygen *chip) +{ + return !(oxygen_read8(chip, OXYGEN_MPU401 + 1) & MPU401_RX_EMPTY); +} + +static void oxygen_read_uart(struct oxygen *chip) +{ + if (unlikely(!oxygen_uart_input_ready(chip))) { + /* no data, but read it anyway to clear the interrupt */ + oxygen_read8(chip, OXYGEN_MPU401); + return; + } + do { + u8 data = oxygen_read8(chip, OXYGEN_MPU401); + if (data == MPU401_ACK) + continue; + if (chip->uart_input_count >= ARRAY_SIZE(chip->uart_input)) + chip->uart_input_count = 0; + chip->uart_input[chip->uart_input_count++] = data; + } while (oxygen_uart_input_ready(chip)); + if (chip->model.uart_input) + chip->model.uart_input(chip); +} + +static irqreturn_t oxygen_interrupt(int dummy, void *dev_id) +{ + struct oxygen *chip = dev_id; + unsigned int status, clear, elapsed_streams, i; + + status = oxygen_read16(chip, OXYGEN_INTERRUPT_STATUS); + if (!status) + return IRQ_NONE; + + spin_lock(&chip->reg_lock); + + clear = status & (OXYGEN_CHANNEL_A | + OXYGEN_CHANNEL_B | + OXYGEN_CHANNEL_C | + OXYGEN_CHANNEL_SPDIF | + OXYGEN_CHANNEL_MULTICH | + OXYGEN_CHANNEL_AC97 | + OXYGEN_INT_SPDIF_IN_DETECT | + OXYGEN_INT_GPIO | + OXYGEN_INT_AC97); + if (clear) { + if (clear & OXYGEN_INT_SPDIF_IN_DETECT) + chip->interrupt_mask &= ~OXYGEN_INT_SPDIF_IN_DETECT; + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, + chip->interrupt_mask & ~clear); + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, + chip->interrupt_mask); + } + + elapsed_streams = status & chip->pcm_running; + + spin_unlock(&chip->reg_lock); + + for (i = 0; i < PCM_COUNT; ++i) + if ((elapsed_streams & (1 << i)) && chip->streams[i]) + snd_pcm_period_elapsed(chip->streams[i]); + + if (status & OXYGEN_INT_SPDIF_IN_DETECT) { + spin_lock(&chip->reg_lock); + i = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); + if (i & (OXYGEN_SPDIF_SENSE_INT | OXYGEN_SPDIF_LOCK_INT | + OXYGEN_SPDIF_RATE_INT)) { + /* write the interrupt bit(s) to clear */ + oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, i); + schedule_work(&chip->spdif_input_bits_work); + } + spin_unlock(&chip->reg_lock); + } + + if (status & OXYGEN_INT_GPIO) + schedule_work(&chip->gpio_work); + + if (status & OXYGEN_INT_MIDI) { + if (chip->midi) + snd_mpu401_uart_interrupt(0, chip->midi->private_data); + else + oxygen_read_uart(chip); + } + + if (status & OXYGEN_INT_AC97) + wake_up(&chip->ac97_waitqueue); + + return IRQ_HANDLED; +} + +static void oxygen_spdif_input_bits_changed(struct work_struct *work) +{ + struct oxygen *chip = container_of(work, struct oxygen, + spdif_input_bits_work); + u32 reg; + + /* + * This function gets called when there is new activity on the SPDIF + * input, or when we lose lock on the input signal, or when the rate + * changes. + */ + msleep(1); + spin_lock_irq(&chip->reg_lock); + reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); + if ((reg & (OXYGEN_SPDIF_SENSE_STATUS | + OXYGEN_SPDIF_LOCK_STATUS)) + == OXYGEN_SPDIF_SENSE_STATUS) { + /* + * If we detect activity on the SPDIF input but cannot lock to + * a signal, the clock bit is likely to be wrong. + */ + reg ^= OXYGEN_SPDIF_IN_CLOCK_MASK; + oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg); + spin_unlock_irq(&chip->reg_lock); + msleep(1); + spin_lock_irq(&chip->reg_lock); + reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); + if ((reg & (OXYGEN_SPDIF_SENSE_STATUS | + OXYGEN_SPDIF_LOCK_STATUS)) + == OXYGEN_SPDIF_SENSE_STATUS) { + /* nothing detected with either clock; give up */ + if ((reg & OXYGEN_SPDIF_IN_CLOCK_MASK) + == OXYGEN_SPDIF_IN_CLOCK_192) { + /* + * Reset clock to <= 96 kHz because this is + * more likely to be received next time. + */ + reg &= ~OXYGEN_SPDIF_IN_CLOCK_MASK; + reg |= OXYGEN_SPDIF_IN_CLOCK_96; + oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg); + } + } + } + spin_unlock_irq(&chip->reg_lock); + + if (chip->controls[CONTROL_SPDIF_INPUT_BITS]) { + spin_lock_irq(&chip->reg_lock); + chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT; + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, + chip->interrupt_mask); + spin_unlock_irq(&chip->reg_lock); + + /* + * We don't actually know that any channel status bits have + * changed, but let's send a notification just to be sure. + */ + snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &chip->controls[CONTROL_SPDIF_INPUT_BITS]->id); + } +} + +static void oxygen_gpio_changed(struct work_struct *work) +{ + struct oxygen *chip = container_of(work, struct oxygen, gpio_work); + + if (chip->model.gpio_changed) + chip->model.gpio_changed(chip); +} + +#ifdef CONFIG_PROC_FS +static void oxygen_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct oxygen *chip = entry->private_data; + int i, j; + + switch (oxygen_read8(chip, OXYGEN_REVISION) & OXYGEN_PACKAGE_ID_MASK) { + case OXYGEN_PACKAGE_ID_8786: i = '6'; break; + case OXYGEN_PACKAGE_ID_8787: i = '7'; break; + case OXYGEN_PACKAGE_ID_8788: i = '8'; break; + default: i = '?'; break; + } + snd_iprintf(buffer, "CMI878%c:\n", i); + for (i = 0; i < OXYGEN_IO_SIZE; i += 0x10) { + snd_iprintf(buffer, "%02x:", i); + for (j = 0; j < 0x10; ++j) + snd_iprintf(buffer, " %02x", oxygen_read8(chip, i + j)); + snd_iprintf(buffer, "\n"); + } + if (mutex_lock_interruptible(&chip->mutex) < 0) + return; + if (chip->has_ac97_0) { + snd_iprintf(buffer, "\nAC97:\n"); + for (i = 0; i < 0x80; i += 0x10) { + snd_iprintf(buffer, "%02x:", i); + for (j = 0; j < 0x10; j += 2) + snd_iprintf(buffer, " %04x", + oxygen_read_ac97(chip, 0, i + j)); + snd_iprintf(buffer, "\n"); + } + } + if (chip->has_ac97_1) { + snd_iprintf(buffer, "\nAC97 2:\n"); + for (i = 0; i < 0x80; i += 0x10) { + snd_iprintf(buffer, "%02x:", i); + for (j = 0; j < 0x10; j += 2) + snd_iprintf(buffer, " %04x", + oxygen_read_ac97(chip, 1, i + j)); + snd_iprintf(buffer, "\n"); + } + } + mutex_unlock(&chip->mutex); + if (chip->model.dump_registers) + chip->model.dump_registers(chip, buffer); +} + +static void oxygen_proc_init(struct oxygen *chip) +{ + struct snd_info_entry *entry; + + if (!snd_card_proc_new(chip->card, "oxygen", &entry)) + snd_info_set_text_ops(entry, chip, oxygen_proc_read); +} +#else +#define oxygen_proc_init(chip) +#endif + +static const struct pci_device_id * +oxygen_search_pci_id(struct oxygen *chip, const struct pci_device_id ids[]) +{ + u16 subdevice; + + /* + * Make sure the EEPROM pins are available, i.e., not used for SPI. + * (This function is called before we initialize or use SPI.) + */ + oxygen_clear_bits8(chip, OXYGEN_FUNCTION, + OXYGEN_FUNCTION_ENABLE_SPI_4_5); + /* + * Read the subsystem device ID directly from the EEPROM, because the + * chip didn't if the first EEPROM word was overwritten. + */ + subdevice = oxygen_read_eeprom(chip, 2); + /* use default ID if EEPROM is missing */ + if (subdevice == 0xffff && oxygen_read_eeprom(chip, 1) == 0xffff) + subdevice = 0x8788; + /* + * We use only the subsystem device ID for searching because it is + * unique even without the subsystem vendor ID, which may have been + * overwritten in the EEPROM. + */ + for (; ids->vendor; ++ids) + if (ids->subdevice == subdevice && + ids->driver_data != BROKEN_EEPROM_DRIVER_DATA) + return ids; + return NULL; +} + +static void oxygen_restore_eeprom(struct oxygen *chip, + const struct pci_device_id *id) +{ + u16 eeprom_id; + + eeprom_id = oxygen_read_eeprom(chip, 0); + if (eeprom_id != OXYGEN_EEPROM_ID && + (eeprom_id != 0xffff || id->subdevice != 0x8788)) { + /* + * This function gets called only when a known card model has + * been detected, i.e., we know there is a valid subsystem + * product ID at index 2 in the EEPROM. Therefore, we have + * been able to deduce the correct subsystem vendor ID, and + * this is enough information to restore the original EEPROM + * contents. + */ + oxygen_write_eeprom(chip, 1, id->subvendor); + oxygen_write_eeprom(chip, 0, OXYGEN_EEPROM_ID); + + oxygen_set_bits8(chip, OXYGEN_MISC, + OXYGEN_MISC_WRITE_PCI_SUBID); + pci_write_config_word(chip->pci, PCI_SUBSYSTEM_VENDOR_ID, + id->subvendor); + pci_write_config_word(chip->pci, PCI_SUBSYSTEM_ID, + id->subdevice); + oxygen_clear_bits8(chip, OXYGEN_MISC, + OXYGEN_MISC_WRITE_PCI_SUBID); + + snd_printk(KERN_INFO "EEPROM ID restored\n"); + } +} + +static void configure_pcie_bridge(struct pci_dev *pci) +{ + enum { PEX811X, PI7C9X110 }; + static const struct pci_device_id bridge_ids[] = { + { PCI_VDEVICE(PLX, 0x8111), .driver_data = PEX811X }, + { PCI_VDEVICE(PLX, 0x8112), .driver_data = PEX811X }, + { PCI_DEVICE(0x12d8, 0xe110), .driver_data = PI7C9X110 }, + { } + }; + struct pci_dev *bridge; + const struct pci_device_id *id; + u32 tmp; + + if (!pci->bus || !pci->bus->self) + return; + bridge = pci->bus->self; + + id = pci_match_id(bridge_ids, bridge); + if (!id) + return; + + switch (id->driver_data) { + case PEX811X: /* PLX PEX8111/PEX8112 PCIe/PCI bridge */ + pci_read_config_dword(bridge, 0x48, &tmp); + tmp |= 1; /* enable blind prefetching */ + tmp |= 1 << 11; /* enable beacon generation */ + pci_write_config_dword(bridge, 0x48, tmp); + + pci_write_config_dword(bridge, 0x84, 0x0c); + pci_read_config_dword(bridge, 0x88, &tmp); + tmp &= ~(7 << 27); + tmp |= 2 << 27; /* set prefetch size to 128 bytes */ + pci_write_config_dword(bridge, 0x88, tmp); + break; + + case PI7C9X110: /* Pericom PI7C9X110 PCIe/PCI bridge */ + pci_read_config_dword(bridge, 0x40, &tmp); + tmp |= 1; /* park the PCI arbiter to the sound chip */ + pci_write_config_dword(bridge, 0x40, tmp); + break; + } +} + +static void oxygen_init(struct oxygen *chip) +{ + unsigned int i; + + chip->dac_routing = 1; + for (i = 0; i < 8; ++i) + chip->dac_volume[i] = chip->model.dac_volume_min; + chip->dac_mute = 1; + chip->spdif_playback_enable = 1; + chip->spdif_bits = OXYGEN_SPDIF_C | OXYGEN_SPDIF_ORIGINAL | + (IEC958_AES1_CON_PCM_CODER << OXYGEN_SPDIF_CATEGORY_SHIFT); + chip->spdif_pcm_bits = chip->spdif_bits; + + if (!(oxygen_read8(chip, OXYGEN_REVISION) & OXYGEN_REVISION_2)) + oxygen_set_bits8(chip, OXYGEN_MISC, + OXYGEN_MISC_PCI_MEM_W_1_CLOCK); + + i = oxygen_read16(chip, OXYGEN_AC97_CONTROL); + chip->has_ac97_0 = (i & OXYGEN_AC97_CODEC_0) != 0; + chip->has_ac97_1 = (i & OXYGEN_AC97_CODEC_1) != 0; + + oxygen_write8_masked(chip, OXYGEN_FUNCTION, + OXYGEN_FUNCTION_RESET_CODEC | + chip->model.function_flags, + OXYGEN_FUNCTION_RESET_CODEC | + OXYGEN_FUNCTION_2WIRE_SPI_MASK | + OXYGEN_FUNCTION_ENABLE_SPI_4_5); + oxygen_write8(chip, OXYGEN_DMA_STATUS, 0); + oxygen_write8(chip, OXYGEN_DMA_PAUSE, 0); + oxygen_write8(chip, OXYGEN_PLAY_CHANNELS, + OXYGEN_PLAY_CHANNELS_2 | + OXYGEN_DMA_A_BURST_8 | + OXYGEN_DMA_MULTICH_BURST_8); + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); + oxygen_write8_masked(chip, OXYGEN_MISC, + chip->model.misc_flags, + OXYGEN_MISC_WRITE_PCI_SUBID | + OXYGEN_MISC_REC_C_FROM_SPDIF | + OXYGEN_MISC_REC_B_FROM_AC97 | + OXYGEN_MISC_REC_A_FROM_MULTICH | + OXYGEN_MISC_MIDI); + oxygen_write8(chip, OXYGEN_REC_FORMAT, + (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_A_SHIFT) | + (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_B_SHIFT) | + (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_C_SHIFT)); + oxygen_write8(chip, OXYGEN_PLAY_FORMAT, + (OXYGEN_FORMAT_16 << OXYGEN_SPDIF_FORMAT_SHIFT) | + (OXYGEN_FORMAT_16 << OXYGEN_MULTICH_FORMAT_SHIFT)); + oxygen_write8(chip, OXYGEN_REC_CHANNELS, OXYGEN_REC_CHANNELS_2_2_2); + oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT, + OXYGEN_RATE_48000 | + chip->model.dac_i2s_format | + OXYGEN_I2S_MCLK(chip->model.dac_mclks) | + OXYGEN_I2S_BITS_16 | + OXYGEN_I2S_MASTER | + OXYGEN_I2S_BCLK_64); + if (chip->model.device_config & CAPTURE_0_FROM_I2S_1) + oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, + OXYGEN_RATE_48000 | + chip->model.adc_i2s_format | + OXYGEN_I2S_MCLK(chip->model.adc_mclks) | + OXYGEN_I2S_BITS_16 | + OXYGEN_I2S_MASTER | + OXYGEN_I2S_BCLK_64); + else + oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, + OXYGEN_I2S_MASTER | + OXYGEN_I2S_MUTE_MCLK); + if (chip->model.device_config & (CAPTURE_0_FROM_I2S_2 | + CAPTURE_2_FROM_I2S_2)) + oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, + OXYGEN_RATE_48000 | + chip->model.adc_i2s_format | + OXYGEN_I2S_MCLK(chip->model.adc_mclks) | + OXYGEN_I2S_BITS_16 | + OXYGEN_I2S_MASTER | + OXYGEN_I2S_BCLK_64); + else + oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, + OXYGEN_I2S_MASTER | + OXYGEN_I2S_MUTE_MCLK); + oxygen_write16(chip, OXYGEN_I2S_C_FORMAT, + OXYGEN_I2S_MASTER | + OXYGEN_I2S_MUTE_MCLK); + oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, + OXYGEN_SPDIF_OUT_ENABLE | + OXYGEN_SPDIF_LOOPBACK); + if (chip->model.device_config & CAPTURE_1_FROM_SPDIF) + oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, + OXYGEN_SPDIF_SENSE_MASK | + OXYGEN_SPDIF_LOCK_MASK | + OXYGEN_SPDIF_RATE_MASK | + OXYGEN_SPDIF_LOCK_PAR | + OXYGEN_SPDIF_IN_CLOCK_96, + OXYGEN_SPDIF_SENSE_MASK | + OXYGEN_SPDIF_LOCK_MASK | + OXYGEN_SPDIF_RATE_MASK | + OXYGEN_SPDIF_SENSE_PAR | + OXYGEN_SPDIF_LOCK_PAR | + OXYGEN_SPDIF_IN_CLOCK_MASK); + else + oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, + OXYGEN_SPDIF_SENSE_MASK | + OXYGEN_SPDIF_LOCK_MASK | + OXYGEN_SPDIF_RATE_MASK); + oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits); + oxygen_write16(chip, OXYGEN_2WIRE_BUS_STATUS, + OXYGEN_2WIRE_LENGTH_8 | + OXYGEN_2WIRE_INTERRUPT_MASK | + OXYGEN_2WIRE_SPEED_STANDARD); + oxygen_clear_bits8(chip, OXYGEN_MPU401_CONTROL, OXYGEN_MPU401_LOOPBACK); + oxygen_write8(chip, OXYGEN_GPI_INTERRUPT_MASK, 0); + oxygen_write16(chip, OXYGEN_GPIO_INTERRUPT_MASK, 0); + oxygen_write16(chip, OXYGEN_PLAY_ROUTING, + OXYGEN_PLAY_MULTICH_I2S_DAC | + OXYGEN_PLAY_SPDIF_SPDIF | + (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) | + (1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) | + (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) | + (3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT)); + oxygen_write8(chip, OXYGEN_REC_ROUTING, + OXYGEN_REC_A_ROUTE_I2S_ADC_1 | + OXYGEN_REC_B_ROUTE_I2S_ADC_2 | + OXYGEN_REC_C_ROUTE_SPDIF); + oxygen_write8(chip, OXYGEN_ADC_MONITOR, 0); + oxygen_write8(chip, OXYGEN_A_MONITOR_ROUTING, + (0 << OXYGEN_A_MONITOR_ROUTE_0_SHIFT) | + (1 << OXYGEN_A_MONITOR_ROUTE_1_SHIFT) | + (2 << OXYGEN_A_MONITOR_ROUTE_2_SHIFT) | + (3 << OXYGEN_A_MONITOR_ROUTE_3_SHIFT)); + + if (chip->has_ac97_0 | chip->has_ac97_1) + oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, + OXYGEN_AC97_INT_READ_DONE | + OXYGEN_AC97_INT_WRITE_DONE); + else + oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 0); + oxygen_write32(chip, OXYGEN_AC97_OUT_CONFIG, 0); + oxygen_write32(chip, OXYGEN_AC97_IN_CONFIG, 0); + if (!(chip->has_ac97_0 | chip->has_ac97_1)) + oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL, + OXYGEN_AC97_CLOCK_DISABLE); + if (!chip->has_ac97_0) { + oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL, + OXYGEN_AC97_NO_CODEC_0); + } else { + oxygen_write_ac97(chip, 0, AC97_RESET, 0); + msleep(1); + oxygen_ac97_set_bits(chip, 0, CM9780_GPIO_SETUP, + CM9780_GPIO0IO | CM9780_GPIO1IO); + oxygen_ac97_set_bits(chip, 0, CM9780_MIXER, + CM9780_BSTSEL | CM9780_STRO_MIC | + CM9780_MIX2FR | CM9780_PCBSW); + oxygen_ac97_set_bits(chip, 0, CM9780_JACK, + CM9780_RSOE | CM9780_CBOE | + CM9780_SSOE | CM9780_FROE | + CM9780_MIC2MIC | CM9780_LI2LI); + oxygen_write_ac97(chip, 0, AC97_MASTER, 0x0000); + oxygen_write_ac97(chip, 0, AC97_PC_BEEP, 0x8000); + oxygen_write_ac97(chip, 0, AC97_MIC, 0x8808); + oxygen_write_ac97(chip, 0, AC97_LINE, 0x0808); + oxygen_write_ac97(chip, 0, AC97_CD, 0x8808); + oxygen_write_ac97(chip, 0, AC97_VIDEO, 0x8808); + oxygen_write_ac97(chip, 0, AC97_AUX, 0x8808); + oxygen_write_ac97(chip, 0, AC97_REC_GAIN, 0x8000); + oxygen_write_ac97(chip, 0, AC97_CENTER_LFE_MASTER, 0x8080); + oxygen_write_ac97(chip, 0, AC97_SURROUND_MASTER, 0x8080); + oxygen_ac97_clear_bits(chip, 0, CM9780_GPIO_STATUS, + CM9780_GPO0); + /* power down unused ADCs and DACs */ + oxygen_ac97_set_bits(chip, 0, AC97_POWERDOWN, + AC97_PD_PR0 | AC97_PD_PR1); + oxygen_ac97_set_bits(chip, 0, AC97_EXTENDED_STATUS, + AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK); + } + if (chip->has_ac97_1) { + oxygen_set_bits32(chip, OXYGEN_AC97_OUT_CONFIG, + OXYGEN_AC97_CODEC1_SLOT3 | + OXYGEN_AC97_CODEC1_SLOT4); + oxygen_write_ac97(chip, 1, AC97_RESET, 0); + msleep(1); + oxygen_write_ac97(chip, 1, AC97_MASTER, 0x0000); + oxygen_write_ac97(chip, 1, AC97_HEADPHONE, 0x8000); + oxygen_write_ac97(chip, 1, AC97_PC_BEEP, 0x8000); + oxygen_write_ac97(chip, 1, AC97_MIC, 0x8808); + oxygen_write_ac97(chip, 1, AC97_LINE, 0x8808); + oxygen_write_ac97(chip, 1, AC97_CD, 0x8808); + oxygen_write_ac97(chip, 1, AC97_VIDEO, 0x8808); + oxygen_write_ac97(chip, 1, AC97_AUX, 0x8808); + oxygen_write_ac97(chip, 1, AC97_PCM, 0x0808); + oxygen_write_ac97(chip, 1, AC97_REC_SEL, 0x0000); + oxygen_write_ac97(chip, 1, AC97_REC_GAIN, 0x0000); + oxygen_ac97_set_bits(chip, 1, 0x6a, 0x0040); + } +} + +static void oxygen_shutdown(struct oxygen *chip) +{ + spin_lock_irq(&chip->reg_lock); + chip->interrupt_mask = 0; + chip->pcm_running = 0; + oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); + spin_unlock_irq(&chip->reg_lock); +} + +static void oxygen_card_free(struct snd_card *card) +{ + struct oxygen *chip = card->private_data; + + oxygen_shutdown(chip); + if (chip->irq >= 0) + free_irq(chip->irq, chip); + flush_work_sync(&chip->spdif_input_bits_work); + flush_work_sync(&chip->gpio_work); + chip->model.cleanup(chip); + kfree(chip->model_data); + mutex_destroy(&chip->mutex); + pci_release_regions(chip->pci); + pci_disable_device(chip->pci); +} + +int oxygen_pci_probe(struct pci_dev *pci, int index, char *id, + struct module *owner, + const struct pci_device_id *ids, + int (*get_model)(struct oxygen *chip, + const struct pci_device_id *id + ) + ) +{ + struct snd_card *card; + struct oxygen *chip; + const struct pci_device_id *pci_id; + int err; + + err = snd_card_create(index, id, owner, sizeof(*chip), &card); + if (err < 0) + return err; + + chip = card->private_data; + chip->card = card; + chip->pci = pci; + chip->irq = -1; + spin_lock_init(&chip->reg_lock); + mutex_init(&chip->mutex); + INIT_WORK(&chip->spdif_input_bits_work, + oxygen_spdif_input_bits_changed); + INIT_WORK(&chip->gpio_work, oxygen_gpio_changed); + init_waitqueue_head(&chip->ac97_waitqueue); + + err = pci_enable_device(pci); + if (err < 0) + goto err_card; + + err = pci_request_regions(pci, DRIVER); + if (err < 0) { + snd_printk(KERN_ERR "cannot reserve PCI resources\n"); + goto err_pci_enable; + } + + if (!(pci_resource_flags(pci, 0) & IORESOURCE_IO) || + pci_resource_len(pci, 0) < OXYGEN_IO_SIZE) { + snd_printk(KERN_ERR "invalid PCI I/O range\n"); + err = -ENXIO; + goto err_pci_regions; + } + chip->addr = pci_resource_start(pci, 0); + + pci_id = oxygen_search_pci_id(chip, ids); + if (!pci_id) { + err = -ENODEV; + goto err_pci_regions; + } + oxygen_restore_eeprom(chip, pci_id); + err = get_model(chip, pci_id); + if (err < 0) + goto err_pci_regions; + + if (chip->model.model_data_size) { + chip->model_data = kzalloc(chip->model.model_data_size, + GFP_KERNEL); + if (!chip->model_data) { + err = -ENOMEM; + goto err_pci_regions; + } + } + + pci_set_master(pci); + snd_card_set_dev(card, &pci->dev); + card->private_free = oxygen_card_free; + + configure_pcie_bridge(pci); + oxygen_init(chip); + chip->model.init(chip); + + err = request_irq(pci->irq, oxygen_interrupt, IRQF_SHARED, + KBUILD_MODNAME, chip); + if (err < 0) { + snd_printk(KERN_ERR "cannot grab interrupt %d\n", pci->irq); + goto err_card; + } + chip->irq = pci->irq; + + strcpy(card->driver, chip->model.chip); + strcpy(card->shortname, chip->model.shortname); + sprintf(card->longname, "%s at %#lx, irq %i", + chip->model.longname, chip->addr, chip->irq); + strcpy(card->mixername, chip->model.chip); + snd_component_add(card, chip->model.chip); + + err = oxygen_pcm_init(chip); + if (err < 0) + goto err_card; + + err = oxygen_mixer_init(chip); + if (err < 0) + goto err_card; + + if (chip->model.device_config & (MIDI_OUTPUT | MIDI_INPUT)) { + unsigned int info_flags = + MPU401_INFO_INTEGRATED | MPU401_INFO_IRQ_HOOK; + if (chip->model.device_config & MIDI_OUTPUT) + info_flags |= MPU401_INFO_OUTPUT; + if (chip->model.device_config & MIDI_INPUT) + info_flags |= MPU401_INFO_INPUT; + err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI, + chip->addr + OXYGEN_MPU401, + info_flags, -1, &chip->midi); + if (err < 0) + goto err_card; + } + + oxygen_proc_init(chip); + + spin_lock_irq(&chip->reg_lock); + if (chip->model.device_config & CAPTURE_1_FROM_SPDIF) + chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT; + if (chip->has_ac97_0 | chip->has_ac97_1) + chip->interrupt_mask |= OXYGEN_INT_AC97; + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); + spin_unlock_irq(&chip->reg_lock); + + err = snd_card_register(card); + if (err < 0) + goto err_card; + + pci_set_drvdata(pci, card); + return 0; + +err_pci_regions: + pci_release_regions(pci); +err_pci_enable: + pci_disable_device(pci); +err_card: + snd_card_free(card); + return err; +} +EXPORT_SYMBOL(oxygen_pci_probe); + +void oxygen_pci_remove(struct pci_dev *pci) +{ + snd_card_free(pci_get_drvdata(pci)); + pci_set_drvdata(pci, NULL); +} +EXPORT_SYMBOL(oxygen_pci_remove); + +#ifdef CONFIG_PM +int oxygen_pci_suspend(struct pci_dev *pci, pm_message_t state) +{ + struct snd_card *card = pci_get_drvdata(pci); + struct oxygen *chip = card->private_data; + unsigned int i, saved_interrupt_mask; + + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); + + for (i = 0; i < PCM_COUNT; ++i) + if (chip->streams[i]) + snd_pcm_suspend(chip->streams[i]); + + if (chip->model.suspend) + chip->model.suspend(chip); + + spin_lock_irq(&chip->reg_lock); + saved_interrupt_mask = chip->interrupt_mask; + chip->interrupt_mask = 0; + oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); + spin_unlock_irq(&chip->reg_lock); + + synchronize_irq(chip->irq); + flush_work_sync(&chip->spdif_input_bits_work); + flush_work_sync(&chip->gpio_work); + chip->interrupt_mask = saved_interrupt_mask; + + pci_disable_device(pci); + pci_save_state(pci); + pci_set_power_state(pci, pci_choose_state(pci, state)); + return 0; +} +EXPORT_SYMBOL(oxygen_pci_suspend); + +static const u32 registers_to_restore[OXYGEN_IO_SIZE / 32] = { + 0xffffffff, 0x00ff077f, 0x00011d08, 0x007f00ff, + 0x00300000, 0x00000fe4, 0x0ff7001f, 0x00000000 +}; +static const u32 ac97_registers_to_restore[2][0x40 / 32] = { + { 0x18284fa2, 0x03060000 }, + { 0x00007fa6, 0x00200000 } +}; + +static inline int is_bit_set(const u32 *bitmap, unsigned int bit) +{ + return bitmap[bit / 32] & (1 << (bit & 31)); +} + +static void oxygen_restore_ac97(struct oxygen *chip, unsigned int codec) +{ + unsigned int i; + + oxygen_write_ac97(chip, codec, AC97_RESET, 0); + msleep(1); + for (i = 1; i < 0x40; ++i) + if (is_bit_set(ac97_registers_to_restore[codec], i)) + oxygen_write_ac97(chip, codec, i * 2, + chip->saved_ac97_registers[codec][i]); +} + +int oxygen_pci_resume(struct pci_dev *pci) +{ + struct snd_card *card = pci_get_drvdata(pci); + struct oxygen *chip = card->private_data; + unsigned int i; + + pci_set_power_state(pci, PCI_D0); + pci_restore_state(pci); + if (pci_enable_device(pci) < 0) { + snd_printk(KERN_ERR "cannot reenable device"); + snd_card_disconnect(card); + return -EIO; + } + pci_set_master(pci); + + oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); + for (i = 0; i < OXYGEN_IO_SIZE; ++i) + if (is_bit_set(registers_to_restore, i)) + oxygen_write8(chip, i, chip->saved_registers._8[i]); + if (chip->has_ac97_0) + oxygen_restore_ac97(chip, 0); + if (chip->has_ac97_1) + oxygen_restore_ac97(chip, 1); + + if (chip->model.resume) + chip->model.resume(chip); + + oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); + + snd_power_change_state(card, SNDRV_CTL_POWER_D0); + return 0; +} +EXPORT_SYMBOL(oxygen_pci_resume); +#endif /* CONFIG_PM */ + +void oxygen_pci_shutdown(struct pci_dev *pci) +{ + struct snd_card *card = pci_get_drvdata(pci); + struct oxygen *chip = card->private_data; + + oxygen_shutdown(chip); + chip->model.cleanup(chip); +} +EXPORT_SYMBOL(oxygen_pci_shutdown); |